The table shows the amount of time a student spends practicing each week and her typing speed. Amount of Student Practice

Practice (hours) x 1 2 3 4 5
Typing Speed (words per minute) y 21 26 31 36 41
Which equation describes the data displayed in the table?

y - 1 = 5(x - 4)
y - 1 = 5( x - 4)

y - 26 = 15(x + 2)
y - 26 = 1 fifth( x + 2)

y - 41 = 15(x - 5)
y - 41 = 1 fifth( x - 5)

y - 31 = 5(x - 3)

⊂⊃⊂⊃ω

step-by-step explanation:

i hope this : )

8 2/3 is the answer

step-by-step explanation: just use a calculator

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional